Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)

Hex Burst (B25.JRG)
By Jeff R. Graham
Copyright 2001
82.7% Light Return
Angles for R.I. = 1.62
65 facets + 6 facets on girdle = 71
2-fold, mirror-image symmetry
96 index
L/W = 1.332 T/W = 0.722 T/L = 0.542
P/W = 0.564 C/W = 0.191
H/W = (P+C)/W+0.02 = 0.774
P/H = 0.728 C/H = 0.246
Vol./W^3 = 0.408

Addition # 5 - This is really a “Money Cut” design, notice the lack of meets and the high degree of flexibility. It is ideal for large Topaz’s that you do not want to spend a lot of time on, but that need a Barion. Cut this in R.I. 1.62 to 1.93 (86.3%) with no changes.

 

 

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